SOLFEGGIO n.
he names do, re, mi, fa, sol, la, si, by which singing is taught; a singing exercise upon these syllables.
SPECTRUM n. 3 definitions
um of rays considered solely with reference to their chemical effects, as in photography. These, in the usual photogrophic methods, have their maximum influence at and beyond the violet rays, but are not limited to this region. -- Chromatic spectrum, the visible colored rays of the solar spectrum, exhibiting the seven…